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How to Resolve \"AttributeError: Module Object Missing Attribute\" When Attempting Mutual Imports with Circular References?

Mary-Kate Olsen
Mary-Kate OlsenOriginal
2024-10-20 12:38:30112browse

How to Resolve

AttributeError: Module Object Missing Attribute

When attempting to import two modules with mutual references, you may encounter this error: "AttributeError: 'module' object has no attribute [duplicate]". This often occurs when the module structure is dependent on each other, resulting in a circular reference.

Explanation

In the provided code, module 'a.py' attempts to import 'b.py', and within 'b.py', there's an import of 'a.py'. This creates a circular dependency, causing Python to raise the "AttributeError".

Solution

To resolve this issue, avoid mutual imports within the top-level module. Instead, use functions to import modules when necessary.

Example in Python

Before:

<code class="python"># a.py
import b

# b.py
import a</code>

After:

<code class="python"># a.py
def call_b():
  import b
  b.hi()

# b.py
def hi():
  print("hi")</code>

This way, 'a.py' no longer imports 'b.py' at the top level, and the circular dependency is broken.

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